What is the original text of the poem "Flowers are not flowers and fog is not fog"?

The original text of the poem "Flowers are not flowers, fog is not fog" is:

Flowers are not flowers (Author: Bai Juyi)

Say it's flowers, not flowers, say it's fog? Not fog.

It came in the middle of the night and left at dawn.

When did a short and beautiful spring dream come?

When they leave, they are like clouds in the morning.

Free translation

Like flowers and not flowers, like fog and not fog, come at midnight and leave at dawn. It was like a short and beautiful dream when it came, and it was like a cloud in the morning when it left.

To annotate ...

Chaoyun: This is the story of King Xiang of Chu dreaming of the Goddess of Wushan. Song Yu's preface to Gao Tang Mi: My concubine is under the sun of Wushan, the maggot of Gaoqiu, the morning clouds, the dusk rain, the morning sun and the balcony.